CN111453002A - Carrier rocket, fire cutting cable protection cover and assembly thereof - Google Patents
Carrier rocket, fire cutting cable protection cover and assembly thereof Download PDFInfo
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- CN111453002A CN111453002A CN202010285736.3A CN202010285736A CN111453002A CN 111453002 A CN111453002 A CN 111453002A CN 202010285736 A CN202010285736 A CN 202010285736A CN 111453002 A CN111453002 A CN 111453002A
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- initiator
- cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/64—Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
- B64G1/645—Separators
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Abstract
The utility model relates to an aerospace technical field especially relates to a carrier rocket, firer cutting cable safety cover and subassembly thereof, and wherein, firer cutting cable safety cover includes: the extending direction of the end face of each cover section is the same as the extending direction of one diameter A-A of the fire cutting rope protecting cover; the two cover sections are symmetrically arranged by taking the other diameter B-B of the fire cutting rope protection cover as a symmetry axis, and the diameter B-B is perpendicular to the diameter A-A; the other two cover sections are respectively inserted into a gap between the two cover sections which are symmetrically arranged by taking the diameter B-B as a symmetry axis; a gap with a certain distance is formed between the end surfaces of two adjacent cover sections, and the inner surface of one cover section and the outer surface of the other cover section adjacent to the inner surface have certain overlap. The application provides a requirement of installation firer cutting cable safety cover to cabin section space can be reduced to the firer cutting cable safety cover that provides.
Description
Technical Field
The application relates to the technical field of aerospace, in particular to a carrier rocket, a fire cutting rope protection cover and a component thereof.
Background
When the multistage boosting carrier is separated, the cabin section is cut off by a fire cutting rope so as to realize unlocking and separation of the cabin section. In the prior art, as shown in fig. 1, the pyrotechnic cutting string 120 is circumferentially arranged along the inner wall of the capsule 130, and two initiators 140 are provided on the pyrotechnic cutting string 120 at 180 ° opposite to each other, so that the pyrotechnic cutting string 120 is ignited by the initiators 140. In the process of cutting the firer cutting rope 120, the generated impact force can impact the firer cutting rope 120 fixed on the inner wall of the cabin section 130; in addition, the resulting blast flow, section debris, etc. can damage equipment within the section 130.
Therefore, in the prior art, in order to fix the fire cutting rope 120 to prevent the fire cutting rope from flying out under the action of impact force and prevent blasting airflow, cabin segment fragments and the like generated in the cutting process from damaging equipment inside the cabin segment 130, a fire cutting rope protective cover 110 is installed on the inner wall of the cabin segment 130.
The conventional pyrotechnic cutting cord protection casing 110 is divided radially into four sections, namely a casing section 111, a casing section 112, a casing section 113 and a casing section 114, wherein an initiator mounting seat and an opening are left in the casing section 111 and the casing section 113 to establish an initiation transfer passage.
During installation, the shroud segment 111, the shroud segment 112 and the shroud segment 113 are installed first in this order, and then the shroud segment 114 is installed. However, since the dimension D2 of the longest position of the cover segment 114 is greater than the dimension D1 of the shortest position between the cover segment 113 and the cover segment 111, i.e., D2> D1, the last segment of the cover segment 114 cannot be installed in the radial direction, and therefore, the installation of the last segment of the cover segment 114 of the fire cutting rope protection cover 110 in the prior art is selected to be installed from the axial direction of the cylindrical cabin segment 130, but the requirement for the axial space of the cabin segment 130 is high. It is difficult to install the pyrotechnic cutting cord protector 110 inwardly, particularly the last section 114 of the pyrotechnic cutting cord protector 110, if instrumentation or other protrusions are installed at corresponding locations on the nacelle section 130.
In addition, the pyrotechnic cutting string 120 is made of elastic rubber, the position of the initiator 140 may be deviated, and the installation requires the mounting seat of the pyrotechnic cutting string protection cover 110 to be aligned with the initiator 140, so that the pyrotechnic cutting string protection cover 110 may be axially dislocated. In order to prevent installation interference between the individual segments (111, 112, 113, 114) of the flame cut cable guard 110, a gap d is left between two adjacent segments, which gap is also the axially adjustable distance of the flame cut cable guard 110. However, to prevent the blast of gas from the pyrotechnic cutting cord 120, and the escape of any pieces of the deck section from the gap, the gap d is generally small, and thus the ability of the pyrotechnic cutting cord guard 110 to be axially adjustable is also poor.
Therefore, how to reduce the requirement of installing the fire cutting rope protective cover on the cabin space is a technical problem which needs to be solved urgently by the technical personnel in the field at present.
In addition, how to increase the position adjustment range of the fire cutting rope protective cover is also a technical problem which needs to be solved urgently by the technical personnel in the field at present.
Disclosure of Invention
The application provides a carrier rocket, an initiating explosive device cutting cable protection cover and a component thereof, which are used for reducing the requirement of installing the initiating explosive device cutting cable protection cover on a cabin space.
In addition, the carrier rocket, the initiating explosive cutting cable protection cover and the assembly thereof can enlarge the position adjusting range of the initiating explosive cutting cable protection cover.
In order to solve the technical problem, the application provides the following technical scheme:
a pyrotechnic cutting cord protection cap comprising: the extending direction of the end face of each cover section is the same as the extending direction of one diameter A-A of the fire cutting rope protecting cover; the two cover sections are symmetrically arranged by taking the other diameter B-B of the fire cutting rope protection cover as a symmetry axis, and the diameter B-B is perpendicular to the diameter A-A; the other two cover sections are respectively inserted into a gap between the two cover sections which are symmetrically arranged by taking the diameter B-B as a symmetry axis; a gap with a certain distance is formed between the end surfaces of two adjacent cover sections, and the inner surface of one cover section and the outer surface of the other cover section adjacent to the inner surface have certain overlap.
The fire cutting rope protection cover as described above, wherein it is preferable that the other two cover segments interposed between the two cover segments symmetrically arranged with the diameter B-B as the axis of symmetry are symmetrically arranged with the diameter a-a as the axis of symmetry.
The fire cutting rope protection cover is characterized in that the installation holes are formed in the cover sections, and the cover sections are fixedly connected with the cabin sections through the installation holes by connecting pieces.
The pyrotechnic cutting cord protection cap as described above, wherein preferably oblong holes are provided in the opposing cap segments which cooperate with the protrusions on the initiator support.
In the fire cutting rope protection cover, preferably, the length direction of the oblong hole formed in the cover section is the same as the circumferential direction of the fire cutting rope protection cover.
A pyrotechnic cutting cord protection cap assembly comprising: the detonator support and the firer cutting cable protection cover are characterized in that the protrusion of the detonator support is inserted into the long round hole of the firer cutting cable protection cover, and the protrusion on the detonator support is provided with a detonator mounting hole penetrating through the inner side and the outer side.
The assembly for protecting the cutting cord for the firer as described above, wherein preferably, the initiator support is further provided with a long circular hole penetrating through both sides, and the initiator support is fixedly connected with the long circular hole of the initiator support through a connecting piece penetrating through the mounting hole of the cutting cord for the firer.
The pyrotechnic cutting cord protection cap assembly as described above, wherein the length direction of the oblong hole of the initiator holder is preferably the same as the circumferential direction of the pyrotechnic cutting cord protection cap.
The pyrotechnic cutting cord protection cap assembly as described above, wherein preferably the initiator seat further has initiator charging projections distributed on the other side of the initiator seat opposite to the projections of the initiator seat, and the initiator mounting hole passes through the initiator charging projections on the other side from the projections of the initiator seat on the one side.
A launch vehicle, comprising: the fire cutting cable comprises a cabin section, a fire cutting cable and the fire cutting cable protection cover assembly; the fire cutting cable is arranged on the inner wall of the cabin section, and the fire cutting cable protection cover assembly is used for fixing and shielding the fire cutting cable.
Compared with the background art, the fire cutting cable protection cover provided by the application can be used for radially installing each cover section, so that the requirement on the axial space of the cabin section can be reduced due to the installation of the fire cutting cable protection cover; and because the length direction of the oblong hole of the firer cutting rope protection cover is the same as the circumference of the firer cutting rope protection cover, and the length direction of the oblong hole of the initiator support is the same as the circumference of the firer cutting rope protection cover, the position of the firer cutting rope protection cover can be adjusted within a large range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic diagram of a prior art configuration of a pyrotechnic cutting cord protector;
FIG. 2 is a schematic structural diagram of a fire cutting cable protection cover provided by an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a section of a fire cutting rope protection cover according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a pyrotechnic cutting cord protection cap and an initiator support thereof according to an embodiment of the present disclosure;
FIG. 5 is a schematic cross-sectional view of a pyrotechnic cutting cord protection cap and an initiator support therefor according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an initiator seat of the pyrotechnic cutting cord protection cover according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a fire cutting cable protection cover according to an embodiment of the present application.
The application provides a firer cuts cable safety cover 210 includes: four shroud segments, shroud segment 211, shroud segment 212, shroud segment 213, and shroud segment 214.
Wherein the extending direction of the end face of each cover section (cover section 211, cover section 212, cover section 213 and cover section 214) is the same as the extending direction of one diameter A-A of the fire cutting rope protection cover 210; two of the cover sections (the cover section 211 and the cover section 213) are symmetrically arranged by taking the other diameter B-B of the fire cutting rope protection cover 210 as a symmetry axis, and the diameter B-B is vertical to the diameter A-A; two further shroud segments (shroud segment 212 and shroud segment 214) are inserted into the gap between the two shroud segments (shroud segment 211 and shroud segment 213), respectively.
Preferably, the other two shroud segments (shroud segment 212 and shroud segment 214) interposed between the two shroud segments (shroud segment 211 and shroud segment 213) symmetrically disposed about diameter B-B are symmetrically disposed about diameter A-A.
In addition, please refer to fig. 3, fig. 3 is a schematic structural diagram of the segments of the fire cutting cable protection cover according to the embodiment of the present application.
A gap with a certain distance d is formed between the end surfaces of two adjacent cover sections, and the inner surface of one cover section and the outer surface of the other cover section adjacent to the inner surface of the one cover section have certain overlap, that is, point E shown in fig. 3 exceeds point F, so that the gap formed between the two adjacent cover sections is shielded, and further, the spatter generated by the explosion of the firer cutting rope 220 is prevented from leaking.
When the firecut cable protection cover 210 provided by the application is installed, the cover section 211 and the cover section 213 are installed, then the cover section 212 is inserted into one gap between the cover section 211 and the cover section 213, and the cover section 214 is inserted into the other gap between the cover section 211 and the cover section 213. Since the extending direction of the end face of each cover section is the same as the extending direction of the diameter a-a, and the adjacent two cover sections have a gap in front, the lengths of the cover section 212 and the cover section 214 are both smaller than the length of the gap between the cover section 211 and the cover section 213, i.e. D2< D1 in fig. 2, the cover section 212 and the cover section 214 in this application can be inserted from the gap between the radial cover sections of the fire cutting cord protection cover 210, and therefore the installation of the fire cutting cord protection cover 210 in this application can reduce the requirement for the axial space of the cabin section.
On the basis, please continue to refer to fig. 2, fig. 4 and fig. 5, in order to mount the fire cutting rope protection cover 210 on the inner wall of the cabin section 230 to shield the fire cutting rope 220 around the inner wall of the cabin section 230, in the present application, each cover section of the fire cutting rope protection cover 210 is provided with a mounting hole 215, so as to pass through the mounting hole 215 by a connector such as a bolt, a rivet, etc. to be fixedly connected with the cabin section 230, specifically, to be fixedly connected with the fixing hole 231 on the cabin section 230, so as to fixedly connect the fire cutting rope protection cover 210 with the cabin section 230. Referring to fig. 4, the mounting hole 215 is fixedly connected with the long circular hole 242 formed in the initiator support 240 through the mounting hole 215 by a connecting member such as a bolt or a rivet so as to fix the initiator support 240 to the pyrotechnic cutting cord protection cover 210, so that the original mounting hole 215 of the pyrotechnic cutting cord protection cover 210 is used, additional punching weakening materials are not needed, and the structural strength of the pyrotechnic cutting cord protection cover 210 is not affected.
Referring to fig. 4, 5 and 6, fig. 4 is a schematic structural view of a pyrotechnic cutting cord protection cap and a detonator initiator support according to an embodiment of the present disclosure; FIG. 5 is a schematic cross-sectional view of a pyrotechnic cutting cord protection cap and an initiator support therefor according to an embodiment of the present disclosure; fig. 6 is a schematic structural diagram of an initiator seat of the pyrotechnic cutting cord protection cover according to an embodiment of the present disclosure.
The present application provides a pyrotechnic cutting cord protector 210 having oblong holes 216 in opposing cap segments, such as cap segment 211 and cap segment 213, that mate with protrusions 253 on initiator carrier 250, i.e., protrusions of initiator carrier 250 are inserted into oblong holes 216 in pyrotechnic cutting cord protector 210, and protrusions on initiator carrier 250 have initiator mounting holes 251 through the inside and outside to insert initiator 240 through initiator mounting holes 251 to bring initiator 240 into contact with pyrotechnic cutting cord 220 to ignite pyrotechnic cutting cord 220.
Further, the length direction of the oblong hole 216 of the pyrotechnic cutting string protection cover 210 is the same as the circumferential direction of the pyrotechnic cutting string protection cover 210, so that the position of the initiator holder 250, that is, the position between the initiator 240 and the pyrotechnic cutting string 220, can be adjusted in the circumferential direction of the pyrotechnic cutting string protection cover 210, that is, the position of the pyrotechnic cutting string protection cover 210 can be adjusted over a wide range by adjusting the position of the initiator holder 250.
In addition to the above, the initiator holder 250 further has an elongated hole 252 penetrating both sides, the length direction of the elongated hole 252 is the same as the circumferential direction of the pyrotechnic cutting cord protection cover 210, the elongated hole 252 is fixedly connected to the mounting hole 215 of the pyrotechnic cutting cord protection cover 210 by a connecting member such as a bolt or a rivet to fix the initiator holder 250 to the pyrotechnic cutting cord protection cover 210, and the position of the initiator holder 250 may be adjusted in the circumferential direction of the pyrotechnic cutting cord protection cover 210, and further the position of the pyrotechnic cutting cord protection cover 210 may be adjusted in a wide range by adjusting the position of the initiator holder 250.
By arranging the initiator seat 250 and the pyrotechnic cutting protective cover 210 in a split form, the function of the initiator seat 250 is isolated, so that when the initiator 240 is changed, only the structure of the initiator seat 250 is changed, and the relatively large pyrotechnic cutting cord protective cover 210 is not changed, so that the adaptability of structure and installation is enhanced.
The initiator holder 250 also has initiator loading projections 254 disposed on the other side of the initiator holder 250 opposite the projections 253, and the initiator mounting hole 251 passes through the initiator loading projections 254 from the projections 253 on the one side to the projections 254 on the other side. To enhance the strength of the initiator charge protuberance 254, the initiator seat 250 also has a bead 255 attached to the initiator charge protuberance 254.
In addition, this application still provides a firer cutting cable safety cover subassembly, includes: in the case of the pyrotechnic cutting boot 210 and the initiator holder 250 described in the above embodiments, the protrusion 253 of the initiator holder 250 is inserted into the oblong hole 216 of the pyrotechnic cutting cord protection boot 210, and the protrusion 253 of the initiator holder 250 has the initiator mounting hole 251 penetrating the inner and outer sides to detonate the pyrotechnic cutting cord 220 by mounting the initiator 240 into the mounting hole 251.
In addition, the application also provides a carrier rocket, wherein the inner wall of the cabin section of the carrier rocket is circumferentially provided with an initiating explosive cutting rope; the inner wall of the cabin section of the carrier rocket is also provided with the fire cutting rope protection cover assembly in the embodiment so as to fix and shield the fire cutting rope.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A pyrotechnic cutting cord protection cap comprising: the four cover sections are characterized in that the extending direction of the end face of each cover section is the same as the extending direction of one diameter A-A of the fire cutting rope protection cover;
the two cover sections are symmetrically arranged by taking the other diameter B-B of the fire cutting rope protection cover as a symmetry axis, and the diameter B-B is perpendicular to the diameter A-A; the other two cover sections are respectively inserted into a gap between the two cover sections which are symmetrically arranged by taking the diameter B-B as a symmetry axis;
a gap with a certain distance is formed between the end surfaces of two adjacent cover sections, and the inner surface of one cover section and the outer surface of the other cover section adjacent to the inner surface have certain overlap.
2. A fire cutting cord protection cover as claimed in claim 1, wherein two further cover sections are interposed between two cover sections symmetrically arranged with respect to diameter B-B, symmetrically arranged with respect to diameter a-a.
3. The fire cutting rope protection cover according to claim 1 or 2, wherein each cover section is provided with a mounting hole for fixedly connecting with the cabin section through a connecting piece passing through the mounting hole.
4. A pyrotechnic cutting cord guard as claimed in claim 3 in which oblong holes are provided in opposed sections to engage with projections on the initiator support.
5. The pyrotechnic cutting cord protector as claimed in claim 4 wherein the oblong holes in the cover sections are aligned in the same circumferential direction as the pyrotechnic cutting cord protector.
6. A firer cutting cord protection cover assembly, comprising: an initiator holder and the pyrotechnic cutting cord protector of claim 4 or 5 wherein the projection of the initiator holder is inserted into the oblong hole of the pyrotechnic cutting cord protector and wherein the projection of the initiator holder has an initiator mounting hole passing through the inner and outer sides.
7. The pyrotechnic cutting cord protection cap assembly as claimed in claim 6 wherein the initiator support is further provided with an oblong hole extending through both sides, and the initiator support is fixedly connected with the oblong hole of the initiator support by a connecting piece passing through the mounting hole of the pyrotechnic cutting cord protection cap.
8. The pyrotechnic cutting cord guard assembly of claim 7 wherein the oblong hole of the initiator seat is coextensive with the circumference of the pyrotechnic cutting cord guard.
9. The pyrotechnic cutting cord protection cap assembly as claimed in any one of claims 6 to 8 wherein the initiator seat further has initiator charging projections on the other side of the initiator seat opposite the projections of the initiator seat and the initiator mounting hole extends from the projection of the initiator seat on one side through the initiator charging projection on the other side.
10. A launch vehicle, comprising: a deck section, a fire cutting rope and a fire cutting rope boot assembly according to any one of the preceding claims 6 to 9; the fire cutting cable is arranged on the inner wall of the cabin section, and the fire cutting cable protection cover assembly is used for fixing and shielding the fire cutting cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010285736.3A CN111453002B (en) | 2020-04-13 | 2020-04-13 | Carrier rocket, fire cutting cable protection cover and assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010285736.3A CN111453002B (en) | 2020-04-13 | 2020-04-13 | Carrier rocket, fire cutting cable protection cover and assembly thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111453002A true CN111453002A (en) | 2020-07-28 |
| CN111453002B CN111453002B (en) | 2021-08-17 |
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| CN202010285736.3A Active CN111453002B (en) | 2020-04-13 | 2020-04-13 | Carrier rocket, fire cutting cable protection cover and assembly thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504032A (en) * | 2021-02-02 | 2021-03-16 | 星河动力(北京)空间科技有限公司 | Carrier rocket and cutting assembly for interstage separation of carrier rocket |
| CN112762762A (en) * | 2020-12-23 | 2021-05-07 | 中国船舶重工集团有限公司第七一0研究所 | Autonomous type firing line shearing device |
| CN115839287A (en) * | 2023-01-03 | 2023-03-24 | 东方空间(西安)宇航技术有限公司 | Rocket engine self-destruction device, rocket engine and rocket assembly method |
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| CN112762762A (en) * | 2020-12-23 | 2021-05-07 | 中国船舶重工集团有限公司第七一0研究所 | Autonomous type firing line shearing device |
| CN112762762B (en) * | 2020-12-23 | 2022-10-04 | 中国船舶重工集团有限公司第七一0研究所 | Autonomous type firing line shearing device |
| CN112504032A (en) * | 2021-02-02 | 2021-03-16 | 星河动力(北京)空间科技有限公司 | Carrier rocket and cutting assembly for interstage separation of carrier rocket |
| CN112504032B (en) * | 2021-02-02 | 2021-04-13 | 星河动力(北京)空间科技有限公司 | Carrier rocket and cutting assembly for interstage separation of carrier rocket |
| CN115839287A (en) * | 2023-01-03 | 2023-03-24 | 东方空间(西安)宇航技术有限公司 | Rocket engine self-destruction device, rocket engine and rocket assembly method |
| CN115839287B (en) * | 2023-01-03 | 2023-05-09 | 东方空间(西安)宇航技术有限公司 | Rocket engine self-destruction device, rocket engine and rocket assembly method |
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